Carcinoma, NeuroendocrineThyroid Neoplasms
Dr. Stephen Hixson Greer, MD
NPI1891127569PAC ID7517294234
- Medicare services, 2024
- 367
- Medicare patients, 2024
- 220
- Part D claims, 2024
- 192
- Publications
- 2
- Clinical trials
- 1
- Practice address
- 2333 McCallie Ave, Chattanooga, TN 37404
- Practice phone
- Call (423) 894-4220
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Greer's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Stephen Hixson Greer is a general surgeon in Chattanooga, Tennessee
Dr. Greer practices at Parkridge Medical Center in Chattanooga, Tennessee, part of HCA Healthcare.
Dr. Greer's NPI, 1891127569, was assigned on August 5, 2013. Dr. Greer graduated from University of Tennessee, Hsc, College of Medicine in 2013. Dr. Greer holds Tennessee license 59055.
NPI and contact details
- NPI
- 1891127569NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7517294234
- NPI enumeration date
- August 5, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (423) 894-4220
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen Hixson Greer practices at Parkridge Medical Center in Chattanooga, Tennessee
Dr. Greer's primary practice is Parkridge Medical Center, at 2333 McCallie Ave, Chattanooga, TN 37404 in Hamilton County. The practice phone is (423) 894-4220.
- Parkridge Medical Center2333 McCallie Ave, Chattanooga, TN 37404 · Hamilton CountyPhone(423) 894-4220
Source: Dmand AI Affiliation Data
Dr. Stephen Hixson Greer is affiliated with 3 sites of care and 1 medical group
Dr. Greer's primary practice is Parkridge Medical Center in Chattanooga, Tennessee, part of HCA Healthcare. Dr. Greer is also affiliated with Erlanger Baroness Hospital. The medical group on file is University Surgical Associates. Dmand AI also links Dr. Greer to 1 more group practice or clinic, named with a free account.
Erlanger Baroness HospitalUniversity Surgical Associates1 group practice or clinicName with a free account
See all 4 affiliations for Dr. GreerSources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stephen Hixson Greer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Parkridge Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen Hixson Greer is one of 548 general surgeons in Tennessee
Surgery is Dr. Greer's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Greer is licensed in Tennessee.
Specialties and state licenses
- Surgery, TennesseePrimary
General surgeons near Dr. Greer
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
548general surgeons in Tennessee41general surgeons in Chattanooga3general surgeons at Parkridge Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stephen Hixson Greer billed Medicare for 367 services in 2024
CMS data shows 367 Medicare services from Dr. Greer across 10 procedure codes in 2024, for 220 Medicare patients. Medicare paid $34,397 for them.
Medicare services, 2024367
Medicare patients220
Paid by Medicare$34,397
Procedure codes10
Dr. Greer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2592024: 35236%
- Surgery
- 2023: 112024: 1536%
Where Dr. Greer's Medicare services took place, 2024
- In an office16846%
- In a facility19954%
Dr. Greer compared with the Tennessee median for general surgeons, 2024
- Dr. Greer
- Tennessee median
- Medicare services
- 367vs 1742.1 times
- Medicare patients
- 220vs 12280% above
- Part D claims
- 86vs 5265% above
Medians across 548 general surgeons in Tennessee with Dmand AI profiles that report each measure.
Dr. Greer's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Greer?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Greer and other general surgeons in Tennessee.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen Hixson Greer treated 220 Medicare patients in 2024, average age 74
CMS counts 220 Medicare patients who saw Dr. Greer in 2024. The largest group is 75 to 84, with 91 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.52, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Greer's median patient age at 62, with 74% women.
Medicare patients, 2024220
Average age74
Average risk score1.52
Also on Medicaid14%
Dr. Greer's Medicare patients by age, 2024
Dr. Greer's Medicare patients by sex, 2024
- Women13561%
- Men8539%
Chronic conditions among Dr. Greer's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis60%
- Diabetes41%
- Ischemic heart disease38%
- Anxiety34%
- Cancer34%
- Chronic kidney disease32%
Share of Medicare patients with each condition. A patient can have several.
Dr. Greer's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women74%
- Men26%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen Hixson Greer wrote 192 Medicare Part D claims in 2024
In 2024, Dr. Greer wrote 192 Medicare Part D claims for 111 patients. 98% of them were for generic drugs. CMS names the drug for 86 of them, across 3 drugs with 11 or more claims each, at $388 in total drug cost. In 2023, CMS named 59 claims across 2 drugs.
Part D claims, 2024192
Drugs named by CMS3
Total drug cost$388
Part D patients111
Dr. Greer's Part D claims by kind of drug, 2024
- Generic189 claims98%
- Brand-name and other3 claims2%
Dr. Greer's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Greer's Part D claims, 2024
- Opioids41%78 of 192 claims
- Antibiotics17%32 of 192 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 592024: 8646%
Drugs named by CMS: 3 in 2024, 2 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Stephen Hixson Greer scored 94 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Greer for performance year 2024, reported through an alternative payment model (APM). Dr. Greer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 12 procedures of hernia repair (minimally invasive) by Dr. Greer, more than 75% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Greer's MIPS scores, performance year 2024
- 94of 100Final score
- 92.6of 100Quality
- 93of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Greer ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 75th percentile12 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Mastectomy: 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Upper gastrointestinal (GI) endoscopy for acid reflux: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stephen Hixson Greer has 2 publications on record
Dmand AI links 2 papers to Dr. Greer, published from 2018 to 2022.
Papers2
Years published2018 to 2022
Recent publications by Dr. Greer
Ann Thorac Surg
Lung DiseasesLung NeoplasmsMinimally Invasive Surgical Procedures
See who Dr. Greer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Greer works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Stephen Hixson Greer has worked on 1 clinical trial
Dmand AI links Dr. Greer to 1 clinical trial. 1 is still active or recruiting. Conditions studied include Carcinoma, Intraductal, Noninfiltrating and Breast Carcinoma In Situ.
Conditions in Dr. Greer's trials
- Carcinoma, Intraductal, Noninfiltrating
- Breast Carcinoma In Situ
Investigators on the most trials with Dr. Greer
- Ashley Ann Albert1 shared trial
- Batul Hamza Al-Zubeidy, MD1 shared trial
- John W. Ames, MD1 shared trial
Recent clinical trials with Dr. Greer
Carcinoma, Intraductal, NoninfiltratingBreast Carcinoma In Situ7-gene biosignature
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Stephen Hixson Greer received $9,062 in industry payments from 2019 to 2025
CMS Open Payments shows 66 general payments to Dr. Greer from 12 drug and device companies from 2019 to 2025. Education make up the largest share, 44% of the total. Intuitive Surgical, Inc. paid the most, $6,499.
General payments to Dr. Greer by program year, 2019 to 2025
General payments to Dr. Greer by kind, 2019 to 2025
$9.1Kin total
- Education$4,00044%
- Food and beverage$2,54528%
- Travel and lodging$2,51728%
Companies that paid Dr. Greer the most, 2019 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen Hixson Greer graduated from University of Tennessee, Hsc, College of Medicine
Dr. Greer graduated from University of Tennessee, Hsc, College of Medicine in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen Hixson Greer's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Stephen Hixson Greer
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Stephen Hixson Greer's NPI number?
Dr. Stephen Hixson Greer's NPI number is 1891127569. It was assigned on August 5, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen Hixson Greer?
Dr. Stephen Hixson Greer is a general surgeon in Chattanooga, Tennessee. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Stephen Hixson Greer practice?
Dr. Greer practices at 2333 McCallie Ave, Chattanooga, TN 37404. Dr. Greer's primary practice is Parkridge Medical Center in Chattanooga, Tennessee, part of HCA Healthcare. Dmand AI also links Dr. Greer to 1 group practice or clinic.
What is Dr. Stephen Hixson Greer's office phone number?
The practice phone on file for Dr. Greer is (423) 894-4220.
What is Dr. Stephen Hixson Greer's medical license number?
Dr. Greer holds Tennessee license 59055.
Which hospitals is Dr. Stephen Hixson Greer affiliated with?
Dr. Greer practices at Parkridge Medical Center in Chattanooga, Tennessee. Dr. Greer is also affiliated with Erlanger Baroness Hospital.
What medical group is Dr. Stephen Hixson Greer part of?
Dr. Greer is linked to University Surgical Associates.
Does Dr. Stephen Hixson Greer accept Medicare?
Yes. CMS data shows Dr. Greer billed Medicare for 367 services in 2024, and Dr. Greer accepts Medicare assignment.
What is Dr. Stephen Hixson Greer's MIPS score?
Dr. Greer's MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Stephen Hixson Greer see?
CMS counts 220 Medicare patients who saw Dr. Greer in 2024, with an average age of 74.
Show 6 more questionsShow fewer questions
What services does Dr. Stephen Hixson Greer bill to Medicare?
In 2024, Dr. Greer's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99213) and office visit, established patient (99214).
Where did Dr. Stephen Hixson Greer go to medical school?
Dr. Greer graduated from University of Tennessee, Hsc, College of Medicine in 2013.
What drugs does Dr. Stephen Hixson Greer prescribe most?
In 2024 Medicare Part D data, Dr. Greer's most prescribed drugs by claims were Hydrocodone-Acetaminophen, Oxycodone-Acetaminophen and Ondansetron ODT.
Has Dr. Stephen Hixson Greer received payments from drug or device companies?
CMS Open Payments shows $9,062 in general payments to Dr. Greer from 12 companies from 2019 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Stephen Hixson Greer been practicing?
Dr. Greer graduated from medical school in 2013, 13 years ago.
Does Dr. Stephen Hixson Greer do research?
Dmand AI links 2 publications to Dr. Greer, published from 2018 to 2022. Dr. Greer has worked on 1 clinical trial.
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